baber/WOPTO huggingface dataset:
Patent DE-2755064-A1 (DE)
Title: Metallisable surface layer for printed circuit boards - which eliminates oxidative etching of the base material, comprises copolymer of organic acid (ester) and e.g. acid amide
Inventor: WARTUSCH JOHANN DIPL CHEM
IPC: H05K3/18
Filed: 1977-12-10
Abstract: A metallisable surface layer for printed circuit boards contains a copolymer of an organic acid and/or ester, together with an acid amide and/or amino-ester. Pref. the organic acid is (meth)acrylic, crotonic or semi-esters of itaconic, maleic or fumaric acid. The ester is formed from these acids and 1-12C alcohols. Oxidative etching and roughening of the board, e.g. with K dichromate/H2SO4 mixt., fluoboric acid or gas contg. SO3 is eliminated, together with associated problems of process control and pollution. The layer provides sites for metal adhesion throughout the full thickness, so that metal bonding occurs in holes subsequently formed in the board.
Patent DE-2758011-A1 (DE)
Title: Gas dynamic carbon di:oxide laser prodn. - by ultrasonic mixing of carbon di:oxide with expanded hot nitrogen and carbon mon:oxide produced by combustion
Inventor: BORN GUNTHARD DIPL PHYS DR
IPC: H01S3/0953
Filed: 1977-12-24
Abstract: Chemical supply and stimulation of a gas dynamic CO2 laser in ultrasonic mixing operation, the combustion chamber of which is connected via Lavel nozzles with a resonator, which can include a diffuser, involves producing hot N2 and CO in ca. 3:2 molar ratio by the reaction of C2N2 and N2O at ca. 4200 K, expansion in a Laval nozzle array and mixing with CO2 and, if necessary, with other gases, e.g. H2O, so that the vibrational energy stored in the N2 and CO is transferred to the CO2, where it produces inversion. A relatively high reservoir temp. (ca. 4000 K) can be produced relatively simply, whereas the upper limit for most gas dynamic lasers, in which the N2 used as energy carrier is premixed with CO2, is ca. 2500 K, due to dissociation of the CO2, the degree of dissociation of N2 and CO being under 0.1%.
Patent DE-2800845-A1 (DE)
Title: Motor vehicle identification badge - is luminescent triangular foil with rounded corners, held firmly on vehicle
Inventor: LANG LUDWIG DIPL ING
IPC: B60R13/10
Filed: 1978-01-10
Abstract: The internationally usable additional identification badge for motor vehicles can be removed from the vehicle only by destroying the sign. This badge cannot be forged. The badge has flexible triangular red luminescent foil (1) adhesive bonded on the rear portion of the vehicle. The upper field has white letters for displaying the country of origin. The apex rounding radius of the triangle is greater than the rounding radii of the base corners. The registration number (9) of the vehicle is arranged on the lower part of the triangle parallel to the base.
Patent DE-2824333-A1 (DE)
Title: Radiation counter tube - with chamber insides coated with metal film of specified atomic number
Inventor: KREINER HANS-JUERG DIPL PHYS D
IPC: H01J47/00
Filed: 1978-06-02
Abstract: A counter tube for use in measurements of alpha- and beta-radiation, consists of a chamber with metal walls which encloses an insulated electrode and is fitted with a radiation-permeable window. The insides of the walls are made of a metal with an atomic number of >=40 e.g. Ag, W, Pt, Pb, Bi or Au. A gastight chamber is formed by a frame with a bottom and a top plate in which a meander-shaped electrode wire is hld between webs. A window is closed by a radiation-permeable foil, made of plastic a few microns thick. This creates a simple way of increasing the sensitivity of a counter tube to gamma-radiation, independent of the gas filling of the chamber.
Patent DE-2825476-A1 (DE)
Title: Poly-zinc-ammonium (meth)acrylate prodn. - by free radical polymerisation of (meth)acrylic acid with ammonia and zinc (hydr)oxide in water
Inventor: GRUBER DAVID PAUL
IPC: C08F2/04
Filed: 1978-06-09
Abstract: Free radical polymerisation of (meth)acrylic acid mixed with NH3 and finely-divided ZnO(OH)2 in water, uses sufficient NH3 and Zn cpd. to form a complex with the polymer formed, which renders the polymer soluble in water, gives a clear aq. alkaline emulsifier-free polymer soln. which forms clear films when cast on a substrate and dried or hardened. Poly-Zn-ammonium (meth)acrylate is produced more easily in this way than by addn. of ZnO to poly-ammonium (meth)acrylate. No emulsifier, soap or surfactant and no costly and hazardous organic solvent is needed, whilst the hazards associated with bilk polymerisation are also avoided. The soln. obtd. is useful for coating metals, woven and nonwoven textiles and paper and gives water-resistant, hard coatings.
Patent DE-2827622-A1 (DE)
Title: Montage slide projection appts. - provides masking facility for combination with second projector for montage inset
Inventor: ARNOLD HEINZ
IPC: G03B15/08
Filed: 1978-06-23
Abstract: The special slide effect appts. enables montage and other superimposed trick photographs to be projected. A slide is projected, using a conventional slide projector, and in the same light path a masked slide is inserted to black out or reduce the light transmission through part of the slide. A second slide is projected and its size adjusted to match the masked area of the first slide as it appears on the screen. The projected montage image can be photographed. The head of a well-know figure can be given a strange body or shown in unexpected surroundings.
Patent DE-2827966-A1 (DE)
Title: Keyboard with coding slides - has leaf spring abutments at fixed distance apart with one forming pivot bearing
Inventor: BEHRENDT WOLFGANG
IPC: B41J5/14
Filed: 1978-06-26
Abstract: The keyboard has mask-type coding slides movable in guides in their lengthwise direction and equipped with masking tongues briefly obscuring or exposing rays. The slides are actuated by leaf-springs working suddenly. The two abutments for each leaf spring are at a fixed distance from each other less than the spring length. To give the sudden spring movement, one of the abutments is a pivot bearing enclosing one end of the spring, turned in opposite directions by forwards or backwards movement of the key.
Patent DE-2831774-A1 (DE)
Title: Gramophone motor with tachogenerator speed control - has disc type permanent magnetic rotor with non-magnetic bush between rotor disc and shaft
Inventor: PAPST HANS DIETER
IPC: H02K29/08
Filed: 1978-07-19
Abstract: The electric motor has a drive motor with a flat air-gap in which a cove-less stator winding is located. These motors directly drive record players and a tachogenerator for speed control is incorporated in the motor. To minimise interference between the magnetic field of the motor rotor with the output winding of the tachogenerator, the motor is magnetically separated from the shaft. The ferromagnetic parts of the rotor structure are carred on a non-magnetic bush which fits on the motor shaft. The radial thickness of the bush is made as large as possible.
Patent DE-2835083-A1 (DE)
Title: Modifiable electronic circuit - which comprises structural elements whose connections can be varied by changing the path of conductors
Inventor: SCHWARZ HANS WERNER
IPC: H05K1/18
Filed: 1978-08-10
Abstract: Electronic structural unit has several electronic, opt., also electric structural elements, which is functionally modifiable by selective variation of >=1 conductor line connecting the individual structural elements and substituting some other connection. The structural elements are insulated w.r.t. one another and the connecting wires of any elements which are to be electrically connected with one another are contacted, at their terminals, with the contact ends of other structural elements which are not to be connected. The structural elements are embedded in an insulating casting cpd. or foam mass e.g. of 'styropor' (RTM). The conductor line is an electrically conductive colourant or adhesive.
Patent DE-2838797-A1 (DE)
Title: Aluminium IC engine cylinder head - has heavy metal sealing ring with flanges forming sealing face and extending into head
Inventor: RAUE REIMUND DIPL ING
IPC: F02F1/32
Filed: 1978-09-06
Abstract: The aluminium cylinder head is used in piston-type IC engines. It has a heavy metal ring let into it, forming a sealing surface against the cylinder. In cross-section the ring has two flanges, one forming the sealing surface, and the other extending into the head at right angles to this surface. The flanges can be of equal width, and the second one can be curved outwards. The ring can be of sheet-metal, bent into a semi-circle when seen in cross-section and cast into the head.
Patent DE-2838964-A1 (DE)
Inventor: VOLK HEINRICH
IPC: B41K1/10
Filed: 1978-09-07
Abstract: Printing apparatus comprising a housing having at least two oppositely disposed side walls; a plurality of sets of juxtaposed printing elements; a plurality of internally toothed, annular setting wheels supported with respect to the housing for respectively positioning the printing elements; a hollow, axially shiftable, setting shaft extending at least into the annular setting wheels, the setting shaft including (a) a drive member for engaging the internal teeth of a selected one of the setting wheels and (b) a detenting member; a pin mounted with respect to one of the side walls, the pin extending into the hollow setting shaft and including a plurality of detent recesses longitudinally extending along the surface of the pin, the distance between at least two of the recesses corresponding to the width of at least one of the setting wheels, the detenting member of the setting shaft engaging a selected one of the recesses for axially positioning the setting shaft at the setting wheel to be driven.
Patent DE-2844749-A1 (DE)
Title: Ceramic goods, esp. bricks, with a content of fine household refuse - fired under carefully controlled conditions
Inventor: DE FONSECA EMMANUEL
IPC: C04B33/00
Filed: 1978-10-13
Abstract: Ceramic bodies are made by first mixing clay with a constant fine fraction sepd. from household refuse to give a light mixture with a density of 950 to 1050 kg/m3. This mixt. is then homogenised and formed into particles suitable for metering. The particles are then shaped in the known way and the shaped bodies are dried to a moisture content of 30% while holding the wet bulb temp. at 32 degrees C. The articles are then baked under such conditions that the firing point in the heating zone is held within narrow limits. Process is esp. useful for making high quality bricks having improved strength and porosity characteristics. The drying stage is less critical and gives rise to less shrinkage and distortion during drying.
Patent DE-2847121-A1 (DE)
Title: Piston engine lubricating arrangement - has disc on crankcase with radial passages through which oil from sump is pumped centrifugally
Inventor: LICHTENBERG WOLFGANG
IPC: F01M9/12
Filed: 1978-10-30
Abstract: The engine lubricating arrangement is for main and/or crank bearings and uses oil from a crankcase sump. A radial disc (4) near one end of the crankshaft (3) has passages (5) radiating from an axial drilling (13) from a header-chamber (12) around the shaft end with a connection (11) to the sump. When the engine is running oil is pumped along these passages by centrifugal force, past ball valves (6, 7) spring-loaded against that force. Spring carriers/valve stops (10) with perforations (9) permit oil to spray into the (enlarged) inlets (16), in the crankcase facing the disc periphery, of passages (15) supplying the bearings.
Patent DE-2901322-A1 (DE)
Title: Elongated anchor hole cover plate - has oblong form with round bolt hole eccentrically situated in lengthwise direction
Inventor: MAECHTLE ROLAND
IPC: E01F15/04
Filed: 1979-01-15
Abstract: The cover plate is for an elongated hole in a component. This has a round hole for a screwed bolt, esp. that of an expanding socket or anchoring device. The plate is of oblong shape and the round hole (17) is eccentrically situated in its lengthwise direction. To the side of the hole there can be a boss (29) to prevent the plate turning and in one piece wit it, being typically formed by a rib pressed out of it or a lug bent or punched out.
Patent DE-2903980-A1 (DE)
Title: Active chlorine-contg. cleansing bleaching and disinfecting compsns. - contain amino-phosphonic acid- or salt- derived amine oxide complexing agent
Inventor: BLUM HELMUT
IPC: D06L4/21
Filed: 1979-02-02
Abstract: Amino-trimethylene phosphonic acid- and/or ethylene diamine tetramethylene phosphonic acid amine oxides having formula O left arrow N(CH2-PO3H2)3 (I) and/or (H2O3P-CH2)2N (right arrow O)-CH2CH2-N(right arrow O)(CH2-PO3H2)2 (II), or their water-soluble salts, are used as complexing agents in active Cl-contg. cleansing, bleaching and disinfecting compsns. Replacement of the original aminophosphonic acids by their amine oxides increases compsn. stability in combination with active Cl-contg. cpds. The Ca bonding-capacity of the acids is retained also after conversation to the amine oxides. The amine oxides also have a good Fe ion-complexing capacity.
Patent DE-2906095-A1 (DE)
Title: Mending device for tufted fabrics - having mechanically-guided tufting gun driven at selected speed by electric motor
Inventor: MEYER HORST
IPC: D05C15/00
Filed: 1979-02-17
Abstract: A mechanically-guided mending device for tufted products comprises a vertically-mounted carriage (10) carrying a tufting gun (1) which is moved manually to the beginning of a fault in the stationary fabric and then automatically moves the gun in a straight line along the faulty row by means of an electric motor whose speed can be adjusted to give a tuft density which matches that of the original prodn. The quality of the mending is improved, and does not depend on the skill of the operative.
Patent DE-2906447-A1 (DE)
Inventor: SIEGEMUND GUENTER DR
IPC: C07D317/42
Filed: 1979-02-20
Abstract: 4,5-Perfluoro-1,3-dioxolanes prepared by the described process have an anesthetic effect.
Patent DE-2911892-A1 (DE)
Title: Polyester packaging strap - with roughened surface in internally roughened metal crimping sleeve
IPC: B65D63/14
Filed: 1979-03-26
Abstract: The ends of a strap, wound around a package, are normally joined together by creating a zigzag crimped joint by a crimping tool. When high-strength polyester is used for such straps, the necessary friction can be obtained only if the strap surface is given a surface roughness of 0.15 mm depth by rolling between rolls with a diamond powder coating or if a film with a high coefft. of friction such as rust primer with a zinc chromate content is applied to it. The outer cold-rolled metal sleeve likewise has an internal coating to produce surface roughness, such as an anticorrosive primer. The result is a substantial increase of the holding force.
Patent DE-2916381-A1 (DE)
Title: Vibration damping underground storage of e.g. radioactive material - using thixotropic filling between spherical shell and outer cylinder in low stiffness soil
Inventor: MAREK OTHMAR DIPL ING
IPC: B65D88/76
Filed: 1979-04-23
Abstract: A system for the vibration-damping and tectonically safe underground storage of substances, esp. of a radioactive material, uses a container of high stiffness and rounded shape which embedded in a soil of lower stiffness. The stiffness differential of the two media causes any possible line of break to beflected. Dynamic shocks are absorbed by a thixotropic buoyancy mass, filled between the two shells of the container. Earthquakes and other tectonic disturbances can thus not jeopardise the safe underground storage of hazardous substances. Even in case of cracks of the outer shell, the thixotropic filling seals them and prevents any escape.
Patent DE-2921763-A1 (DE)
Title: Electrical appts. security switch - has locking plate setting to zero position and switch cam preventing lock operation
Inventor: MERKLE PAUL
IPC: H01H9/28
Filed: 1979-05-29
Abstract: The special lock consists of fixed plates which are connected to one another over spacers and guide bushes which are affixed to a plate. The locking plate is spring-loaded by means of the lever arm and a pull rod, the spring being hooked onto a pin. Axially moveable bolts are spring-loaded and a switch locking lever is made rotatable about the pivot. When the key is withdrawn, the cam at the rear of the switch prevents it being turned due to a lever arm being in a fixed position. When a key is inserted, the bolts can enter the bores in the locking plate, (which align with those in the housing), and the switch can be turned through 90 degrees.
Patent DE-2926022-A1 (DE)
Title: Rectifier with energy return to mains - has matching transformer with input capacitors and monitors of voltage and zero crossing
Inventor: FELDMAIR LEONHARD
IPC: H02M7/162
Filed: 1979-06-28
Abstract: Prevention of commutation short-circuits due to mains failure and elimination of switching off the supply are achieved with monitors sensing the zero crossing of the regeneration current with the supply provided by thyristors. In addition the instantaneous and effective values are sensed, while the input of the matching transformer features capacitors as energy storages. The actual value of the voltage is derived from a filter when the trigger pulse is obtained during the zero crossing for activating a one shot multivibrator switching over another multivibrator for deriving a wide pulse. This leaves the pulse within the required time slot for control of energy recovery.
Patent DE-2930098-A1 (DE)
Title: Detection of dangerous gas in mine - utilises filament detectors in bridge circuit to operate flashing indicator lamp
IPC: G01N33/00
Filed: 1979-07-25
Abstract: The presence of dangerous gas in a mine is detected by sensor mounted in a safety helmet. A signal indicates the gas exceeds a given level. A detector assembly (1) is powered from a battery (2) via a regulator circuit (3). The detector comprises a Wheatstone bridge (8) which filament detectors (9, 10) are included in two arms while the other arms comprise resistors (X, Y). A potentiometer (P) allows sensitivity to be set for a given level of gas in the atmos. The bridge output is amplified (14) to control a multivibrator (16) which causes a lamp (7) to flash to indicate presence of gas.
Patent DE-2934666-A1 (DE)
Title: Motorised hydraulic pump unit - has pump in sound-proofed casing and external motor with coupling held via damped motor fixture
Inventor: ALTSTADT ERICH ING GRAD
IPC: F04B23/02
Filed: 1979-08-28
Abstract: The hydraulic drive unit comprises a base frame (1) carrying a motor (7) coupled (9) to a hydraulic pump (8). The pump is contained in a totally enclosed casing (3) carried on the frame whilst the coupling and motor fixture assembly (9) is connected to the casing and/or the frame via damping elements (12-14). The damping assembly may comprise a resilient ring (12) arranged between supports (10,11,17) fixed to the casing and/or frame whilst the coupling assembly (9) is connected to the casing and/or frame via this ring (12). The casing may comprise a frame (4) with sound-insulating wall panels (5,6). The oil tank (18) may form part of the casing too or front wall.
Patent DE-2942804-A1 (DE)
Title: Gas-generation equipment with vertical reactor - induces rising spiralling current of gasification medium and downwards peripheral one
Inventor: JANICH HANS-JUERGEN
IPC: C01B3/36
Filed: 1979-10-23
Abstract: The equipment generates gas from fine granular or liq. fuel, having a vertical-shaft-type reactor under pressure with a slag sump at the bottom and an inlet for a gasification agent. At the top is a gas outlet, while fuel and coolant inlets are also included. Means are provided (9,18) to induce a rising spiralling current (24) of the gasification agent, also a further peripheral current (25) spiralling in the same direction of rotation but downwards. The central inlet pipe (8) for the medium can contain swirl-inducing components (9) for the upwards current.
Patent DE-2949493-A1 (DE)
Title: Bulk goods dump cutting appliance - has cutter on movable support guided between sides of bridge
Inventor: FRANKE RUEDIGER DR ING
IPC: B65G65/28
Filed: 1979-12-08
Abstract: The appliance is for the continuous removal of bulk goods from a dump. It consists of a bridge, moving on rails, and formed of two uprights with a connecting strut. A cutter works on the side of the dump. The cutter is positioned on a raisable support, which in turn is guided on the side uprights, below the intermediate strut. In the upper end position, support and cutter may be moved across the dump. One of the uprights is stationary, while the second one is formed as a rocking pillar. The support is guided on the stationary upright in a guide, which accommodates horizontal forces in transverse- and longitudinal direction of the dump. The guide on the rocking pillar accommodates horizontal forces only in the longitudinal direction.
Patent DE-2952754-A1 (DE)
Title: Wax or paraffin candle or torch prodn. - by heating, blowing in gas and coating on core or charging to mould
Inventor: EHRING HANS-DIETER
IPC: C08J9/12
Filed: 1979-12-29
Abstract: In the prodn. of foamed wax, synthetic wax, wax material or paraffin compsns., esp. for use in torches, candles and other shaped articles, the materials are first heated to 2-5 deg.C above their solidification temp. Gases under over-pressure are then blown into the compsns. to form foamed gas-mixt. compsns. which are charged, while still fluid, to solid cores or hollow bodies on or in which they are then cooled below their solidification point. The equipment used is claimed. Candles, having one or more sheaths, rings and opt. a non- foamed top coating; floating candles or torches and mould articles, e.g. having ice-cream cone or beer glass shapes, formed by moulding and unmoulding after solidification are claimed. The gas or air inclusions in compsn. strongly reduce heat-conductivity, whereby burning is made more even.
Patent DE-3001532-A1 (DE)
Inventor: HENVILLE MICHAEL IAN
IPC: G07F1/04
Filed: 1980-01-17
Abstract: The aim of the invention is to provide a hinge mechanism for a coin testing mechanism which permits adequate separation of two plates, even close to the hinge axis, in conditions where the separation of the plates remote from the hinge axis must be limited. The two plates 12 and 13 are coupled by a hinge pin 19 which passes through slots 21 in lugs 22 on the plate 13 and holes in lugs 20 on the plate 12. A coil spring 23 is disposed around the hinge pin 19 and has its free ends secured to a cantilever leaf spring 28 secured to the plate 13. The slots 21 extend perpendicular to the plate 13 and the springs 23 and 28 co-operate to hold the hinge pin 19 in the bottom of the slots 21. The coil spring has a central loop 24 which bears against the edge of the plate 12 and thus serves to bias the two plates together about the hinge axis. A lever 31 pivoted on the plate 13 carries a cam surface 32 which co-operates with a cam follower surface 35 on the plate 12 so that when the lever is actuated the plates are forced progressively apart by the cam surface riding up the cam follower surface. The coil spring 23 initially allows the plate 12 to pivot about the hinge axis away from the plate 13 but eventually plate 12 strikes an abutment 38 which prevents further rotation of the plate. Further movement of the cam surface up the cam follower surface causes the leaf spring 28 to flex and allow separation of the plates along the edges adjacent the hinge pin 19.
Patent DE-3007036-A1 (DE)
Title: Diamond-faced rotary surgical instrument - has spiral faces extending in curve from groove edges in rotation direction
Inventor: MUEHLE JOHANNES
IPC: A61B17/16
Filed: 1980-02-26
Abstract: The rotary, preferably oblong instrument for bone surgery has a convex surface, and spiral faces coated with diamonds or other grinding material. In sectional view and in the direction of rotation, these faces (4) extend from a radiused portion at the edge of the respective adjacent groove (11). The radius of the faces is less than that of the circle (6) by which the instrument (1) is circumscribed. From the opposite groove edge (7) the face rises in a curve to this circle, and drops more steeply towards the groove bottom.